National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Overcast

35°F

2°C

Humidity 59%
Wind Speed E 9 mph
Barometer 30.30 in (1025.9 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 19 Mar 12:54 pm EDT
Extended Forecast for

Watertown MA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 42. South wind around 7 mph.

    High: 42 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 33. South wind around 6 mph.

    Low: 33 °F

    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 54. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 54 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Rain, mainly after 9pm. Low around 42. Southwest wind 7 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Rain

  • Saturday

    Saturday: A chance of rain, mainly before 7am. Mostly sunny, with a high near 56. Northwest wind 6 to 9 mph. Chance of precipitation is 30%.

    High: 56 °F

    Chance Rain
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37. North wind around 6 mph becoming west after midnight.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain after 1pm. Mostly cloudy, with a high near 53. South wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 53 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain likely. Mostly cloudy, with a low around 39. South wind around 7 mph becoming northeast after midnight. Chance of precipitation is 70%.

    Low: 39 °F

    Rain Likely

  • Monday

    Monday: A chance of rain before 2pm. Mostly cloudy, with a high near 47. North wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 47 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 42. South wind around 7 mph.
Tonight
Partly cloudy, with a low around 33. South wind around 6 mph.
Friday
Increasing clouds, with a high near 54. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Rain, mainly after 9pm. Low around 42. Southwest wind 7 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A chance of rain, mainly before 7am. Mostly sunny, with a high near 56. Northwest wind 6 to 9 mph. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 37. North wind around 6 mph becoming west after midnight.
Sunday
A chance of rain after 1pm. Mostly cloudy, with a high near 53. South wind 6 to 8 mph. Chance of precipitation is 30%.
Sunday Night
Rain likely. Mostly cloudy, with a low around 39. South wind around 7 mph becoming northeast after midnight. Chance of precipitation is 70%.
Monday
A chance of rain before 2pm. Mostly cloudy, with a high near 47. North wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 28. Northwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 43. Northwest wind 6 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 30. Southwest wind around 6 mph.
Wednesday
A chance of rain. Partly sunny, with a high near 48. West wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown MA
 42.37°N 71.16°W (Elev. 46 ft)
Last Update:
1:11 pm EDT Mar 19, 2026
Forecast Valid:
1pm EDT Mar 19, 2026-6pm EDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation